CN108327292A - A kind of automatic soldering device and welding procedure of single-side welding double-side forming - Google Patents

Abstract

The invention discloses an automatic welding device and a welding process for single-sided welding and double-sided forming, which are used for welding the T-shaped weld seam of the panel, including a plastic welding torch, a welding torch holder, a welding torch boom, a DC electric push rod, Rolling and wiping device, a pair of DC electric push rods are fixed on the welding torch arm, and the push rod of each DC electric push rod is fixedly connected with the welding torch holder; the plastic welding torch is fixed on the welding torch holder, arranged on a pair of DC electric push rods Between the rods; a pair of rolling and wiping devices are installed on the welding torch holder, distributed on both sides of the plastic welding torch. The device and process are suitable for large-scale workshops and shipyards to complete welding work with high repeatability and heavy workload. The new welding method of single-sided welding and double-sided forming can ensure that a T-shaped weld only needs to be opened on one side, and it can be welded and formed at one time. Using the corresponding automatic welding mechanism can greatly improve the welding quality and welding efficiency, shorten the working time, and save labor costs.

Description

An automatic welding device and welding process for single-side welding and double-side forming

technical field

The invention relates to the field of welding technology, in particular to an automatic welding device and a welding process for single-side welding and double-side forming.

Background technique

With the development of social productivity and the popularization of automated production lines, automatic welding production lines have been widely used in large shipyards and welding workshops. Ordinary welding production lines often have openings at the root of both sides of the panel when processing T-shaped welds, and weld them separately on both sides to prevent impermeable welding. However, due to the high temperature of the liquid welding material during welding, a large stress, namely thermal stress, will be generated during the condensation and heat dissipation process, and even the structure will be deformed, which is the case in the welding process on both sides. However, the welding time on both sides cannot be unified and the space cannot be synchronized, so the thermal stress deformation cannot be controlled uniformly. After welding, additional heat treatment is often required to correct the structural deformation, which is time-consuming and laborious. In addition, since a weld seam needs to be welded twice in both positive and negative directions, the cost of automatic welding time is doubled.

In order to solve the above problems, a more reasonable solution is the advanced welding method of single-sided welding and double-sided forming, that is, one weld only needs to be welded once, and the input heat is controlled by welding current and arc intensity, thereby controlling the thermal deformation of welding. method, rationally optimize the welding process by anti-deformation control. However, this method always has its defects in the practice process: due to the poor fluidity of the liquid welding material, the vertical position of the welding pool, and the size of the welding material itself, the liquid welding material often cannot flow to the root of the panel, resulting in the need to leave the welding part. There are gaps that are not filled by welding materials, that is, the occurrence of impermeable welding, which will greatly affect the welding quality, affect the strength of the welding structure, and destroy the welding quality.

Contents of the invention

In order to solve the problems of high welding time and poor welding quality of traditional T-shaped welds, the present invention provides an automatic welding device and welding process for single-sided welding and double-sided forming, which is suitable for large-scale workshops and shipyards to complete repetitive tasks. High-volume welding work.

The technical scheme adopted by the present invention to solve the technical problem is: an automatic welding device for single-sided welding and double-sided forming, which is used to weld the T-shaped weld seam of the panel, including a plastic welding torch, a welding torch holder, a welding torch boom, a direct current A pair of DC electric push rods are fixed on the arm of the welding torch, and the push rod of each DC electric push rod is fixedly connected with the welding torch holder; the plastic welding torch is fixed on the welding torch holder and arranged in a Between the pair of DC electric push rods; a pair of rolling and wiping devices are installed on the welding torch holder and distributed on both sides of the plastic welding torch.

Further, the plastic welding torch is LST610A plastic welding torch.

Further, the push rod of the DC electric push rod is fixedly connected with the welding torch holder through the welding torch lifting sleeve.

Further, it also includes a welding material scraper, which is used to scrape off excess liquid welding material on the side panels without openings.

Further, the panel is open on one side, and the opening angle is controlled between 72°-75°.

Further, the rolling wiping device includes a central shaft and a metal roller that can rotate around the central shaft, the central shaft is fixed on the welding torch holder, and is spaced a certain distance from the plastic welding torch to ensure that the solder contacted by the roller is already in a semi-solidified state , and can extrude this molten welding plastic into the weld position.

The present invention also provides an automatic welding process for single-sided welding and double-sided forming, said process is implemented in the above-mentioned device, and the process includes:

When welding the T-shaped seam of the panel, it is only necessary to open on one side of the panel, and adjust the position of the plastic welding torch relative to the welding port on the opening side of the panel through the DC electric push rod. After the plastic welding torch fills the molten pool with liquid welding materials, use Rolling and wiping device squeezes and fills the liquid welding material into the weld seam.

Further, it also includes using a welding material scraper to scrape off excess liquid welding material on the side panel without holes.

Further, the angle of the opening on one side of the panel is controlled between 72°-75°.

Further, the surface of the rolling wiper device is chemically processed so that it does not infiltrate the liquid welding material, and can squeeze the liquid welding material applied to the molten pool by the automatic welding machine into the bottom of the weld to prevent impermeable welding.

The beneficial effects of the invention are: one welding seam only needs to be welded once, and by controlling the magnitude of the welding current to match the moving speed of the welding torch, it is ensured that the solder can be squeezed by the rolling device before solidification, and can be formed at one time. . It can avoid that the liquid welding material cannot flow to the root of the panel due to the poor fluidity of the liquid welding material, the vertical welding pool, and the size of the welding material. The occurrence of problems such as the phenomenon of penetration can be improved, the welding quality can be improved, the strength of the welding structure can be ensured, and the welding quality can be enhanced.

Description of drawings

Fig. 1 is the side view of automatic welding machine device;

Fig. 2 is the front view of automatic welding machine device;

Fig. 3 is the working schematic diagram of automatic welding machine device;

In the figure: welding material scraper 1, plastic welding torch 2, welding torch holder 3, welding torch boom 4, DC electric push rod 5, rolling device 7, solder 8.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-3, an automatic welding device with single-sided welding and double-sided forming is used to weld the T-shaped weld of the panel, including a welding material scraper 1, a plastic welding torch 2, a welding torch holder 3, and a welding torch Crane arm 4, DC electric push rod 5, welding torch lifting sleeve 6, rolling device 7, a pair of DC electric push rods 5 are fixed on the welding torch boom 4, and the push rod of each DC electric push rod 5 is lifted by the welding torch The sleeve 6 is fixedly connected with the welding torch holder 3; the plastic welding torch 2 is fixed on the welding torch holder 3 and arranged between a pair of DC electric push rods 5; a pair of rolling wiper devices 7 are installed on the welding torch holder 3 and distributed in Two sides of the plastic welding torch.

Specifically, the plastic welding torch 2 in this embodiment is an LST610A plastic welding torch.

Welding material scraper 1 is used to scrape off the excess liquid welding material at the root of the side panel without holes, and can be fixed on the automatic welding structure through the clamping device, so that it can move synchronously with the rolling device. For some positions, it cannot The specific welding seam connecting the holding device can be processed by manual scraping.

Specifically, the rolling wiping device includes a central shaft and a metal roller that can rotate around the central shaft, the central shaft is fixed on the welding torch holder, and is spaced a certain distance from the plastic welding torch to ensure that the solder 8 in contact with the roller is semi-solidified State, and can squeeze this molten welding plastic into the weld position.

This embodiment also provides an automatic welding process for single-sided welding and double-sided molding, the process is implemented in the above-mentioned device, and the process includes:

When in use, the welding torch arm 4 of the automatic welding device is connected to the rail frame through a six-degree-of-freedom rotating cloud disk, which is no different from a traditional automatic welding machine here.

When welding the T-shaped seam of the panel, it is only necessary to open on one side of the panel, and the angle of the opening on one side of the panel is controlled between 72°-75°. Adjust the position of the plastic welding torch 2 relative to the welding port on the opening side of the panel through the DC electric push rod 5. After the plastic welding torch fills the molten pool with liquid welding material, use a rolling device to squeeze and fill the liquid welding material into the weld to prevent In case of impermeable welding, use a welding consumable scraper to scrape off excess liquid consumables on the side panels without openings to ensure the smoothness of the weld seam and avoid accumulation of welding consumables.

The surface of the rolling wiper 7 needs to be chemically processed so that it does not infiltrate the liquid welding material, and can squeeze the liquid welding material applied to the molten pool by the automatic welding machine into the bottom of the weld to prevent impenetrable welding.

Claims (10)

1. a kind of automatic soldering device of single-side welding double-side forming is welded for the T-type weld seam to panel, feature exists In, including plastic welding gun (2), welding gun fixed seat (3), welding gun arm (4), direct current drive push rod (5), roll-on device (7) etc., institute State fixed a pair of direct current drive push rod (5) on welding gun arm (4), push rod and the welding gun fixed seat of each direct current drive push rod (5) (3) it is fixedly connected；Plastic welding gun (2) is fixed in welding gun fixed seat (3), is arranged between a pair of of direct current drive push rod (5)；One Roll-on device (7) is mounted in welding gun fixed seat (3), the both sides of plastic welding gun (2) are distributed in.

2. a kind of automatic soldering device of single-side welding double-side forming according to claim 1, which is characterized in that the modeling Expect that welding gun (2) uses LST610A plastic welding guns.

3. a kind of automatic soldering device of single-side welding double-side forming according to claim 1, which is characterized in that described straight The push rod of stream electric pushrod (5) promotes sleeve (6) by welding gun and is fixedly connected with welding gun fixed seat (3).

4. a kind of automatic soldering device of single-side welding double-side forming according to claim 1, which is characterized in that further include Wlding scraper plate (1), for being struck off to the extra liquid wlding of non-aperture side plate.

5. a kind of automatic soldering device of single-side welding double-side forming according to claim 1, which is characterized in that the face Plate single-open, opening angle control between 72 ° -75 °.

6. a kind of automatic soldering device of single-side welding double-side forming according to claim 1, which is characterized in that the rolling It includes central shaft and the Metal Contact Rollers that can rotate around center axis to smear device (7), and central shaft is fixed in welding gun fixed seat (3).

7. a kind of automatic soldering technique of single-side welding double-side forming, which is characterized in that the technique is described in claim 1 It is realized in device, which includes：

When carrying out the T-type weld seam welding of panel, it is only necessary in panel single-open, plastics weldering is adjusted by direct current drive push rod (5) Position of the rifle (2) relative to the soldering opening of panel open side is filled in plastic welding gun to after the filling liquid wlding of molten bath using roll-on It sets, by liquid wlding extrusion packing into weld seam.

8. technique according to claim 7, which is characterized in that further include being struck off using wlding scraper plate to non-aperture side plate Extra liquid wlding.

9. technique according to claim 7, which is characterized in that the angle of the panel single-open is controlled at 72 ° -75 ° Between.

10. technique according to claim 7, which is characterized in that the surface of the roll-on device (7) carries out at chemical technology Reason, does not infiltrate liquid wlding.